Inventor

POWELL GRAHAM RALPH

GB3 patents

⚠️ This page may combine multiple inventors who share the name “POWELL GRAHAM RALPH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SMITH JAMES GORDON CHARTERS

1 patent

US9322785B2Apr 26, 2016

Inclusion detection in polished gemstones

SMITH JAMES GORDON CHARTERS5 citations68

GERSAN ETS

1 patent

US6358427B1Mar 19, 2002

Marking diamond

GERSAN ETS10 citations68

D'GAMA SIOBHAN

1 patent

US9796536B2Oct 24, 2017

Automatic gemstone orientation

D'GAMA SIOBHAN3 citations60